Home / 21,588.39-32,374.08-10,491.80

Finding the Fourth Proportional to 21,588.39, 32,374.08 and 10,491.80

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Solution

The fourth proportional to 21,588.39, 32,374.08 and 10,491.80 is: 15,733.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,588.39 : 32,374.08 = 10,491.80 : x
  2. Step 2: Convert to fraction form
    21,588.39/32,374.08 = 10,491.80/x
  3. Step 3: Cross multiply
    21,588.39x = 32,374.08 × 10,491.80
  4. Step 4: Simplify right side
    21,588.39x = 339,662,210.67
  5. Step 5: Solve for x
    x = 339,662,210.67/21,588.39
  6. Step 6: Final answer
    x = 15,733.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.